The 1989 Jeep Wagoneer was offered with the 4.0L I6 engine in a single Limited trim. This manual is matched to that exact year, model, engine, and trim, so the information lines up with the vehicle you are working on.
Engines
- 4.0L I6 — 242 cu in, OHV
Trims
- Limited
Known issues on the 1989 Wagoneer. Three recalls are on federal record for this model year: a loss of the antilock-brake (ABS) function with reduced power assist; contaminated hydraulic fluid that can cause the anti-lock brake system to malfunction; and a high engine idle when the vehicle is first placed in gear that can result in unexpected acceleration. Owners have filed 12 complaints and Jeep has issued 10 technical service bulletins for the model year.
Whether you are tracing the ABS fault or the cruise-control idle condition behind the recalls above, the figures here are specific to the 1989 Wagoneer rather than a generic year range.
THERE MAY BE HYDRAULIC FLUID CONTAMINATION FROM CONDENSATION FORMATION THAT CAN PLUG THE ABS BRAKE BOOSTER PUMP FILTER; STRESS CORROSION OF THE MASTER CYLINDER SNAP RING HAS BEEN TRACED TO CHLORINE LEAKING FROM THE LOW PRESSURE HYDRAULIC HOSE WHICH MAY CAUSE IT TO BREAK; FRONT BRAKE HOSE TO TIRE INTERFERENCE WHICH MAY CAUSE FAILURE OF THE BRAKE HOSE.
CONTAMINATION OF THE HYDRAULIC FLUID CAN CAUSEMALFUNCTIONING OF THE ANTI-LOCK BRAKE SYSTEM; LOW PRESSURE HOSE LEAKAGE CAUSESLOSS OF BRAKE FLUID AND ALSO RESULTS IN CORROSION AND FAILURE OF THE MASTERCYLINDER SNAP RING, RESULTING COMPLETE BRAKE FAILURE; FAILURE OF THE FRONT BRAKEHOSE DUE TO HOSE TO TIRE INTERFERENCE WILL CAUSE FAILURE OF ONE HALF OF THEBRAKE SYSTEM RESULTING IN A LONGER STOPPING DISTANCE THAN EXPECTED.
REPLACE ABS LOW PRESSURE HOSE; REBUILD MASTER BRAKE CYLINDER; INSPECT, SERVICE INTERFERENCE PROBLEMS, AND REPLACE FRONT BRAKE HOSE AS NECESSARY.
VEHICLE DESCRIPTION: VEHICLES EQUIPPED WITH ANTILOCK BRAKE SYSTEM (ABS). THE ANTILOCK BRAKE SYSTEM (ABS) HYDRAULIC CONTROL UNIT CAN EXPERIENCE EXCESSIVE BRAKE ACTUATOR PISTON SEAL WEAR WHICH COULD CAUSE PUMP-MOTOR DETERIORATION.
IF THIS OCCURS, THE ABS FUNCTION WOULD BE LOSE AND REDUCED POWER ASSIST WOULD BE EXPERIENCED DURING VEHICLE BRAKING. THE INSTRUMENT PANEL WARNING LIGHTS WILL SIGNAL SYSTEM IMPAIRMENT AND THE BASE MANUAL BRAKES WILL REMAIN FUNCTIONAL.
DEALERS WILL TEST THE VEHICLE'S ABS AND REPAIR AS NECESSARY. THE WARRANTY ON ALL ABS COMPONENTS WILL BE EXTENDED TO 10 YEARS OR 100,000 MILES (EXCEPT FOR THE BRAKE ACTUATOR PISTON ASSEMBLY AND THE PUMP-MOTOR ASSEMBLY WHICH WILL HAVE A LIFETIME COVERAGE). OWNERS WILL BE REIMBURSED FOR PREVIOUS ABS COMPONENT REPAIR COSTS.
MALFUNCTION OF FUEL INJECTION SYSTEM THROTTLE POSTITION SENSOR COULD CAUSE INTERMITTENT HIGH ENGINE IDLE SPEED IMMEDIATELY AFTER STARTING ENGINE.
HIGH ENGINE IDLE WHEN CAR IS FIRST PLACED IN GEAR COULDRESULT IN UNEXPECTED ACCELERATION.
REPLACE THROTTLE POSITION SENSORS WITH SENSORS THAT WOULD SEND CORRECT SIGNALS TO THE FUEL INJECTION SYSTEM.
SUBJECT REGARDING WIRE SPLICE REPAIRS. *SB
SUBJECT REGARDING CHILD SEAT TETHER ANCHORS. *TT
SUBJECT ON THE CHILD SEAT TETHER ANCHORS. *MJS
SUBJECT REGARDING CHILD SEAT TETHER ANCHORS. *TT
THIS BULLETIN PROVIDES A REVISED WIRE SPLICE PROCEDURE AND RELATED PARTS. *TT
INFORMATION ON INSTALLATION OF RADIO TRANSMITTING EQUIPMENT. *AK
SUBJECT ON CUSTOMER SATISFACTION NOTIFICATION #733--BRAKE PEDAL SHIFT INTERLOCK. *YC
INFORMATION ON CHILD SEAT TETHER ANCHORS. *TT
Showing the 8 most recent of 10 technical service bulletins on file with NHTSA.
TRANSMISSION JUMPED OUT OF PARKING GEAR INTO REVERSE, CAUSING ACCIDENT/INJURY. *AK
WHILE IN REVERSE VEHICLE ACCELERATED SUDDENLY, RESULTING IN A COLLISION WHICH CAUSED MINOR INJURIES TO DRIVER. VEHICLE WAS TOTALED*AK *JB
ENGINE FAILURE RESULTED IN ENGINE FIRE (OHIO TRAFFIC CRASH REPORT). *MJS
AIR TUBE/CHECK VALVES FAILED, RESULTING IN HARD START/POOR RUNNING/BACKFIRING/LOWER MILEAGE/IMPROPER POLLUTION CONTROL. *AK
TRANSFER CASE SEAL LEAKED.
REAR WINDSHIELD WIPER MOTOR SHORTED OUT.
FRONT PASSENGER TIRES WEAR OUT ON THE OUTSIDE EDGES.
DT*: THE CONTACT STATED WHILE DRIVING 35 MPH ON NORMAL ROAD CONDITIONS, THE ABS LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO A CERTIFIED INDEPENDENT MECHANIC WHO DETERMINED THE ABS PUMP HAD NOT OUTPUT. THERE WAS A RECALL # 96V260000 PERTAINING TO THE ABS PROBLEM. THE MANUFACTURER DETERMINED THE RECALL WAS ALREADY PERFORMED ON THE VEHICLE. HOWEVER, THE CONTACT DID NOT BELIEVE THE MANUFACTURER STATEMENT WAS CORRECT. THE VEHICLE WAS PURCHASED IN 1995 AND THE LETTER WAS NEVER RECEIVED BY THE CO
ABS: ABS LIGHT CAME ON; IMMEDIATELY AFTER, COMPLETE BRAKE LOSS; COULD NOT APPLY BRAKE PEDAL AT ALL. TT
RADIATOR FAILED.
PROBLEM WITH DRIVERS'S WINDOW.
ABS ACTUATOR PUMP/MTR ASSY FAILED PRIOR TO/AFTER RECALL REPAIR.
NO SUMMERY LISTED FOR ABOVE VEHICLE. *AK
CONSUMER WAS NEVER NOTIFIED OF RECALL ON THE THROTTLE POSITION SENSOR. NLM
WHEN TRAVELING AT ANY SPEED THE VEHICLE WILL CUT OFF WITHOUT PRIOR WARNING. ALSO, THERE IS A TSB ON THE VEHICLE DUE TO THIS PROBLEM WITH THE CRANKSHAFT. CONSUMER HAS CONTACTED THE DEALER. PLEASE PROVIDE ANY FURTHER DETAILS. *AK
Showing the 15 most serious of 16 complaints filed with NHTSA.
